Product Description
44L 4-Gas Calibration Gas – 18.5% Oxygen Deficiency Simulation
This 44 Liter reactive 4-gas calibration cylinder is designed for technicians who require controlled oxygen-deficiency simulation at 18.5% O₂, well below OSHA’s 19.5% minimum safe limit.
Gas mixture includes:
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Hydrogen Sulfide (H₂S) – 10 PPM
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Carbon Monoxide (CO) – 50 PPM
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Methane (CH₄) – 2.5% (50% LEL)
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Oxygen (O₂) – 18.5%
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Nitrogen Balance
The 18.5% oxygen concentration creates a clear deficiency condition to confirm alarm activation while simultaneously validating toxic and combustible sensor channels in multi-gas monitors.
With 750 PSI fill pressure and 1.5 cubic feet of volume, the 44L format offers practical portability for contractor use and smaller confined space programs.
Gas Concentration Overview
| Gas | Concentration |
|---|---|
| Hydrogen Sulfide (H₂S) | 10 PPM |
| Carbon Monoxide (CO) | 50 PPM |
| Methane (CH₄) | 2.5% (50% LEL) |
| Oxygen (O₂) | 18.5% |
| Balance | Nitrogen |
Cylinder Specifications
| Specification | Detail |
|---|---|
| Cylinder Size | 44 Liters |
| Pressure | 750 PSI |
| Valve Type | C-10 |
| Cylinder Material | Aluminum |
| Gas Reactivity | Reactive |
| Approximate Volume | 1.5 Cubic Feet |
Recommended Applications
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Contractor confined space entry
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Oxygen-deficiency alarm validation
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Industrial hygiene inspections
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Utility field operations
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Portable gas detector maintenance
Compatible with standard C-10 demand flow regulators used across major multi-gas detector brands.
Why Choose the 44L 18.5% Blend
• Simulates pronounced oxygen-deficient environments
• Confirms alarm activation below OSHA threshold
• Compact size for mobile compliance teams
• Reactive formulation optimized for consistent sensor performance
Custom oxygen levels, alternative PSI ratings, and modified gas concentrations are available upon request.
